Since Ancient Rome they’ve been prescribed for upset stomach, and today they’re clinically proven to treat numerous digestive issues. They can prevent allergies in infants, and have even been linked with decreased risk for anxiety and depression…wondering what I’m talking about? PROBIOTICS, of course!

The truth is, I’ve been thinking a lot about probiotics lately. And embarrassingly, it’s because I rarely eat them. Hence, I resolved to learn more about probiotics and incorporate them into my life…here’s what happened…

First, because of…let’s just call it my restricted dairy intake…I got excited about the idea of drinking Kombucha tea. Kombucha tea is an ancient beverage that has become somewhat of a health fad these days. Initially, I thought I could buy Kombucha tea at my local specialty tea store. And while they do sell Kombucha tea leaves, this isn’t the real deal, as it’s impossible for dry tea leaves to contain probiotics, because outside of a cool environment, probiotics die. While there are some “spore” varieties that will supposedly hatch after being heated, I couldn’t find any of those on stores shelves.

As for making Kombucha tea from scratch…it would definitely be a “dairy-less” way to get probiotics, however, without being able to verify which strains are in the starter culture, I wasn’t too eager to invest my time. Plus, I read too many case reports of people getting sick from “suspicious” starter culture. Hence, I decided to keep searching for another probiotic food choice.

There’s always yogurt, of course. But after some reading I realized that nearly all of the “big name” commercial probiotic yogurt brands only contain one or two specific strains, and none of them carried the strains that seemed to me to be the most beneficial, namely L. casei and L. rhamnosus.

Then I came across Kefir.

Kefir has been called the “champagne of probiotic milk beverages” and has been around since ancient times. Kefir is fermented milk, so it’s basically just like yogurt except it’s a little more “liquedy”. But more importantly, unlike many probiotics yogurts, Kefir contains ten different strains of probiotics, including the two I was looking for!

So I bought it! And I tried it! I didn’t notice any immediate changes in how I felt, but coincidentally after I started drinking it someone told me that I looked different and specifically asked me if I had changed my probiotics routine! It was quite a shocking coincidence!

But then I sat down with a friend of mine, Richard You-Wu, an MD-PhD candidate who specializes in gastrointestinal health. He set me straight on some probiotic facts that initially changed how I felt about them.

First, while I thought that more strains meant more benefits, Richard said, “it’s not as simple as saying that more is better or diversity is better.” As a matter of fact, he explained that some probiotics can antagonize others, meaning mediocre probiotic strains may out-compete healthier probiotic strains. So with a mixed bag, there’s no guarantee that you’ll get a sufficient quantity of the kind you’re looking for.

The other thing that sold me on Kefir is that each half cup contain two billion probiotics, which is often the amount used in scientific studies. Interestingly, Richard explained that we don’t know enough about dosage. He even commented that no one even knows why we use the current dosages we use; they were just randomly picked at some point.

After hearing about all of the uncertainty surrounding the science of probiotics, I started to feel less thrilled about the whole idea of “health enhancing bacteria”. But when I asked Richard about the coolest thing he’s ever learned about probiotics, I was reassured of the miraculous ability of these microorganisms. Deep down inside me, my gut instinct (no pun intended) tells me they really do belong in our diets. And while we presently don’t have all the details sorted out, I think it’s hard to deny that they have some serious potential to heal people. Here’s what Richard told me…

“The coolest thing I’ve learned about probiotics, goes back to my second year when I was 19 and I was working in a research lab…I was looking at how the gut moves, (called) peristalsis… (which is) a wave motion that moves food down your gut. I had a sick animal (in whom) peristalsis did not happen, there was no movement and no stool passing down, which would result in harm for the animal. But I noticed that when I put a certain strain of probiotics inside their intestine, after about 5-10 minutes, I saw a full recovery of movement in the gut. It regained its function and you could see movement. Just one type of bacteria was able to do that! That was the first time that I saw how something as small as a probiotic could cause an organ to regain its function.”

I don’t know about you, but after hearing this, I think the future of probiotics looks bright!